Make commit preview unmodifiable + map q for quit
@@ -1904,6 +1904,8 @@ function! s:preview_commit()
setlocal filetype=git buftype=nofile nobuflisted
execute 'silent read !cd' s:shellesc(g:plugs[name].dir) '&& git show --pretty=medium' sha
normal! gg"_dd
+ setlocal nomodifiable
+ nnoremap <silent> <buffer> q :q<cr>
wincmd p
endfunction